KONGL. SV. VET. AKADKMIENS HANDLINGAR. 



BAND. 



21 



n:o 



71 



15. VIBILIA PYRIPES, C. BOVALLIUS, 1887. 



PI. X, fig. 23—30. 



Diagn. Caput non rostratum, segments duo priora pereii longitudine hand a?quans. Obitti parvi. 

 Flagellum ant.ennarum primi paris ante rotundatum, eapite longius. Pedes pereii curti, non 

 hirsuti. Femora pedum primi et secundi parium angusta. Processus carpi pedum secundi 

 paris dimidio metacarpi brevior, non serratus. Tibiae ac carpi pedum tertii et quarti parium 

 lati, fere tumidi, metacarpi ac dactvli breves. Pedes quinti ac sexti parium pedibus tertii 

 et quarti parium longiores; femora fere angusta, linearia; dactvli breves. Segmentum uri 

 secundum et tertium coalita, sed linea divisionis in margiuibus est indieata. Anguli postici 

 segmenti ultimi producti, processus obtusos quam telson breviores form antes. Pedunculi 

 pedum uri primi et secundi parium superne angustiores, ramis longiores, pedunculus pedum 

 tertii paris pyriformis, ramis brevior. Telson magnum, rotundatum, pedunculo ultimi 

 paris pedum uri paullo longius. 



The head is not rostrate, shorter than the first two pereional segments. The eyes are small. 

 The flagellum of the first pair of antennae are anteriorly rounded, longer than the head. 

 The pereiopoda are short, not hirsute; the femora of the first two pairs are narrow. The 

 carpal process of the second pair is shorter than the metacarpus, not serrated. The tibiae 

 and carpi of the third and fourth pairs are broad, almost tumid; the metacarpi and dactvli 

 are short. The fifth and sixth pairs are longer tluin the third and fourth: the femora 

 are narrow, linear; the dactvli are short. The second and third ural segments are co- 

 alesced, but the line of division is marked by deep notches at the margins. The hinder 

 corners of the last segment are produced, forming obtuse processes shorter than the telson. 

 The peduncles of the uropoda of the first and second pairs are narrower above, longer 

 than the rami; that of the third pair is pyriform, shorter than the rami. The telson is 

 large, rounded, longer than the peduncle of the last pair of uropoda. 



Colour. Yellowish brown. 

 Length. 8—9 mm. 



Hab. Tropical parts of the Atlantic. (D. M.; S. M.) 



Syn. 1887. Vibilia pyripes, C. BOVALLIUS. "Systematical list, of the Amphipoda Hyperiidea». Bib. t. K. 



Sv. Vet. Ak. Hand). Bd. 11. N:.o 16, p. 10. 



This species is at once distinguished from its congeners by the short, pear-shaped 

 peduncle of the last pair of uropoda. 



The bndy is broad; the integument is rather thick. 



The head is much deeper than long, a little shorter than the first two pereional 

 segments, not produced into a rostrum. 



The eyes are small, elongate, broader above; they consist each of about 30 ocelli. 



The first pair of antenna: are thick, broadly rounded anteriorly. The basal joint 

 of the peduncle is three times longer than the two succeeding joints together. The first 

 joint of the flagellum is ovate, twice longer than the peduncle. 



The second pair of antenna; are eight-jointed in the male, the last joint the shortest. 



The first two pereional segments are almost equal in length, the fourth is the longest 



